Chelsea Handler Wishes Reese Witherspoon a Happy Birthday With Nude Selfie

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What do you get a woman who has everything?

If you're Chelsea Handler, you apparently get your dear friend, Reese Witherspoon, a nude selfie. That's exactly what the Chelsea Does star posted on Instagram -- posing completely naked except for a pair of black stockings -- to celebrate Witherspoon's 40th birthday on Tuesday.

"Happy Birthday @reesewitherspoon," Handler captioned the photo.

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Handler, 41, is no stranger to showing some skin on social media. Just last week, she posted a shot of her derriere while filming her upcoming Netflix talk show, writing, "I did my first warrior dash today. This was pre-dash."

Meanwhile, Witherspoon threw a star-studded birthday party in Hollywood over the weekend, with guests including Jennifer Aniston, Kate Hudson, Nicole Kidman, Matthew McConaughey, and more -- plus, a surprise performance by Taylor Swift!

Get more scoop on the super sweet 40th in the video below.